When you are in enter query mode, you can't navigate out of current block. Therefore, there's nothing you can or should do.

Anyway, there's no problem in it either: as this is a master-detail form, querying the master block will also retrieve records into its detail block. Afterwards, you can further refine the result set in the detail block by entering query mode, filling desired detail block items and executing query.

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open the form.form is open then you insert the every thing finally data save.

ok boss

but second time press F7(Enter Query mode).inser the master form curgo to
List Item then cusor do not move and also write NEXT_BOCK..NO move boss.
do not go to next bock means Detail Block...i feel you clear my issu.

I believe I understand your problem, but it seems that you don't understand what you've already been told.

I'll try for the last time: when you enter query mode in master block (i.e. press F7), there's no way to navigate out of current block and set focus into any item that belongs to another (detail) block. You can't go to the detail block: not by using your keyboard, not by pushing the <Next block> button in Forms toolbar, not by coding NEXT_BLOCK. You just can't do that, unless you exit query mode.

If you don't understand what I'm saying, I'm afraid I'll leave this discussion and let someone else explain it to you.

You've placed your Master block in Query Mode (F7). This means you want to use your Master block to Query a record. After entering search criteria in your Master block you must press F8 to execute your query or you must Cancel your Query Mode (F4 if I remember correctly). You cannot query more than one block at a time when in Query mode. Please take a look at the Forms Help topic on Query Mode for a full explaination of what you can and can't do in Query mode.